Atomizer



Aug. 1s, 1953 H. SCHNEIDER ATOMIZER Filed Aug. 21, 1950 Patented Aug. 18, 195,3

UNITD STATES "ATENT OFFICE 4; claims. (c1. 299-89) This invention relates to atomizers which. a're particularly used for atomizingliquids suchy as for example perfumesl ofrd'isin'f'ectants, or also powder, talcum and the like. l

it is an object of the invention to provide an atomizer of simple construction and operation without using a speciali operating mechanism, such as a piston, push member or other mechanical device for creating expulsion pressure within the receptacle containing v theA substance to be atomized. r

According to the invention the atomizer comprises a resiliently compressible receptacle containing the substance' to be atomized, a hollow plug being mounted in an opening oi the receptable and having inserted'therein a tube reaching to the bottom of thereceptacle, the outer end of the tube being closed anda longitudinal passage being formed'betweenitheoutier wall of the tube and the inner wallof the'hcllow plug', said passage communicating with the" air space in the receptacle above the substance to be atomized; the tube being provided near its outer closed end with a radial hole opening into said passage between the tube and the plugand aligned with the spray hole providedl in the plug. In' this manner, when the receptacle is compressed, air is forced outwards along said'passage and arrives in front of said radialhole where the substance to he atomized is expulsed from the tube and mingled with the air forced out through the spray hole in the plug.

The inventionfis descr-ibedlindetail in the folspecilication, reference being had to the 4Jcccznpanying drawings in whichv Fig. l is a vertical sectionthrough an'atoriizer according to the invention;` l

Fig. 2 is a side view' o'f the" atomizer partly drawn in' section and ready-if'r use, the'cl'os'ure member of the atomizerplu'g being removed;

Fig. 3 is a section through theispray nozzle of the atomizer drawn to a larger scale;

Figs. 4 and 5 are transverse sections along the lines V-IV and V-V of Fig. 3, respectively;

Fig. 6 is a section through a modied spray nozzle;

Figs. 'l and 8 are transverse sections along the lines Vil-VII and VIII-VIII, respectively, of Fig. 6.

The atomizer represented in Figs. 1 to 5 comprises a receptacle l of resilient material, impermeable to liquids, 'for example of a suitable synthetic resin, such as a condensation or polymerisation product. The receptacle is formed with a neck 2 provided with a screw thread 3. A metallic plug member d is inserted into the neck 2. This plug member has an axial bore 5 extending from the inner end of the plug not quite to the upper or outer end thereof. The upper portion of the plug d is formed with a conical outer wall 6. A metallic tube i is inserted into and closely litting the bore 5 in the plug t. This tube is open towards the interior of the receptacle i, but closed at its outer end by an end wall 8 abutting against thestraight top wall 9 of the plug l. The outer wall of the tube i is provided with a longitudinal groove I8' having its lower end communicating with the air' space i l within the receptacle l, and extending until the upper end wall d of the tube. Immediately below the end wall t the tube i is provided with a radial hole l2 establishing communicationbetween the central bore of the tube and the channel it. The plug member d is provided with a spray hole i3 which is in radial alignment with' the hole l2 in the tube l.

When the atomizer is not use, a closure member it is screwed to the screw thread S of the neck?v ofthe receptacle. rlihis closure member ils'provided'with an internal conical surface l5V coasting' with the conical surface t of the plug dto provide a tight seal and prevent leakage ofthe liquid it through the spray hole i3 when the'iatom-izer isnot used. The lower end of the metal tubejl is inserted into a rising tube il preie'rably made of Celluloid, synthetic resin or the lilte` and reaching near the bottom of the receptacle.

For-using' the represented atomizer, the closure member It is unscrewed and while the receptacle l is held between the iingers oi a hand, the opposite walls thereofv are squeezed together so as to create a pressure in the interior of` the receptacle. Air from the passage l@ between the tube l and the 'plug i and expulsed through the spray hole i3.' At the same time liquid It is urgedupwardly through the tube l'towards the top of the tube l and is forced out through the radial hole l2 into the air passage it and is entrained together with the air and expulsed through the spray hole I3. The compressed air passing through the channel it and discharging through the spray hole I3 is obliged to pass in front of the hole i2 through which liquid is discharged. The stream of air discharging through the hole I3 tends to create a depression or suction at the hole l2 ensuring in this manner a continuous discharge of liquid which mingles with the air to provide a steady atomizing spray as long as pressure is exerted on the receptacle. The provision of the radial hole l2 enables to correctly dose the discharged liquid so as to correspond to the air volume which is discharged, thereby providing a perfect atomization of the liquid. Y

When the exertion of pressure on the receptacle ceases, this latter takes its normal shape again and air is sucked in through the spray hole i3 and the passage Ill into the space H and the device is ready again for a new atomizing operation. Owing to the particular disposition of the air passage li), the radial discharge hole i2 opening into the air passage, and the spray hole i3 aligned with the hole l2, not only liquids, but for example also face powder, talcum and the like may be atomized with the described apparatus.

The modification according to Figs. 6 to 8 is similar to the described example. The top portion I3 of tube 'i is of reduced diameter so as to provide an annular recess I9 into which opens the radial hole I2 which is again in alignment with the spray hole i3 in the plug li.

1 claim:

1. An atomizer having a resiliently compressible receptacle provided with an opening therein, a spray nozzle mounted in said opening, said nozzle having an axially extending central bore open towards the interior oi the receptacle and closed at the top of the nozzle, and having a radially directed spray hole near the top of the nozzle, a metal tube inserted into said nozzle bore, said tube having its outer wall provided with a longitudinal groove to form a passage-way between the tube and the wall of the nozzle bore f establishing communication between the interior of the receptacle and said spray hole in the nozzle top, a rising tube connected to the inner end of said metal tube and reaching towards the bottom of the receptacle, said metal tube having its outer end abutting against the closed top of the nozzle and having a radially directed hole provided in proximity to its closed outer end, said hole opening into said passage-way between the tube and the wall of the bore in the nozzle and being in alignment with said spray hole in the top of the nozzle.

2. An atomizer as claimed in claim 1, wherein said atomizer nozzle is provided with a conical wall portion, said spray hole discharging in the area of said conical wall portion, and a closure member having a complementary conical internal wall portion screwed to the receptacle over said nozzle to seal the spray hole when the atomizer is not in use.

3. An atomizer having a resiliently compressible receptacle provided with an opening therein, a spray nozzle mounted in said opening, said nozzle having an axially extending central bore open towards the interior of the receptacle and closed at the top of the nozzle, and having a radially directed spray hole near the top of the nozzle, a metal tube inserted into said nozzle bore, said tube having its outer wall provided with a longitudinal groove to form a passage-way between the tube and the Wall of the nozzle bore establishing communication between the interior of the receptacle and said spray hole in the nozzle top, a rising tube connected to the inner end of said metal tube and reaching towards the bottom of the receptacle, said metal tube having its outer end abutting against the closed top of the nozzle and having a radially directed hole provided in proximity to its closed outer end, said hole opening into said passage-way between the tube and the wall of the bore in the nozzle and being in alignment with said spray hole in the top of the nozzle, and'said metal tube being of reduced diameter at its top portion to provide an annular recess communicating with said radially directed hole, said latter in alignment with said spray hole.

4. In an atomizer, the combination of a spray nozzle with a receptacle provided with an opening, said spray nozzle being mounted in said opening and having an axially extending central bore open towards the interior oi the receptacle and closed at the top ofthe nozzle, and having a radially directed spray hole near the top of the nozzle, a metal tube inserted into said nozzle bore, said tube having its outer wall provided with a longitudinal groove to form a passage-way between the tube and the wall of the nozzle bore establishing communication between the interior of the receptacle and said spray hole in the nozzle top, a rising tube connected to the inner end of said metal tube and reaching towards the bottom oi the receptacle, said metal tube having its outer end abutting against the closed top of the nozzle and having a radially directed hole provided in proximity to its closed outer end, said hole opening into said passage-way between the tube and the wall of the bore in the nozzle and being in alignment with said spray hole in the top of the nozzle, and said metal tube being of reduced diameter at its top portion to provide an annular recess communicating with said radially directed hole, said latter in alignment with said spray hole.

HANS SCHNEIDER.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 803,170 Knight Oct. 31, 1905 1,655,678 Dorment Jan. l0, 1928 FOREIGN PATENTS Number Country Date '263,699 Great Britain Jan. 6, 1927 714,481 France Sept. 7, 1931 

